发明名称 |
SCREW PRESS WITH FILTER PLATES |
摘要 |
A screw press (14) for separating liquid from a solid-liquid mixture, comprises a casing (18) having inlet and outlet sections (24, 26), and a filter section (28) therebetween. The filter section (28) includes an axially extending stack of coplanar filtration plates (36) defining a core passage for receiving a screw configured to convey the solid-liquid mixture from the inlet section (24) to the outlet section (26) while compressing and dewatering the solid-liquid mixture by forcing at least part of the liquid content of the mixture to be expelled out of the casing through inter-plate gaps (40) defined between each pair of adjacent filtration plates (36). The filtration plates (36) are fixed relative to one another and clamped in direct intimate face-to-face contact by a clamping assembly (38) operable for applying a predetermined axially clamping pressure substantially uniformly about the core passage. The inter-plate gaps (40) are controlled by the surface roughness (R) of the plates (36) and the clamping pressure. |
申请公布号 |
WO2015162472(A1) |
申请公布日期 |
2015.10.29 |
申请号 |
WO2015IB00468 |
申请日期 |
2015.04.09 |
申请人 |
RIO TINTO ALCAN INTERNATIONAL LIMITED |
发明人 |
BOIVIN, ALAIN;BOUCHARD, MARIE-LOUISE;SIMARD, GUY;SAVARD, VÉRONIQUE;GRAVEL, SIMON |
分类号 |
B01D29/46 |
主分类号 |
B01D29/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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